Vapor-burner.



N6. 66!,636. Patehted NOV. l3, I900.

' nuns. 6

VAPOR BURNER.

(Application filed Feb. 19-, 1898.),

(No Model.)

m; spans vcrcas 00 HoTuLrmu, wAsnmsmn n c LUDWIG DURR, or BREMEN, GERMANY.

VAPOR-BURNER.

SPECIFICATION forming part of Letters Patent No.'661,636, dated November 13, 1 900.

Application filed February 19I 1898- Serial No. 670,944. (No model.)

To a l whom 1325 may concern:

Be it known that I, LUDWIGDTiRIga subject of the King of Bavaria, residing at Bremen, in the Empire of Germ any, have invented certain new and useful lm provements in Vapor- Burners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

In the specification of former Letters Patent granted to me, No. 568,842, of October 6, 1896, there is described a construction of oilvapor burners wherein two burners fed from a single gasifying,vaporizing,or superheating body, hereinafter called a vaporizing body, are arranged to cooperate one hehind the other in such a manner that the rear burner essentially heats the vaporizing body, while the front burner serves as the illuminating or heating burner,whose practically unobserved flame is nevertheless somewhat increased by the flame of the rear burner. The vaporizing body has been constructed hitherto preferably in the form of an annular body heated from within. The accompanying drawings show a construction of such oil-vapor burner with burners arranged to cooperate one behind the other.

Figure 1 is a longitudinal section, and Fig. 2 partly a cross-section and partly a front view, of the apparatus. Figs. 3 and 4 illustrate an arrangement for using the new burners for heating steam-boilers.

The gasifier or vaporizer Aof the new oilvapor burner is a hollow body which is spread over from without by the flame of the superheater-burner B. The vaporizer may be of any suitable outer shape; but preferably it is made in the form of a torpedo, so that it is completely surrounded by the flame of the rear burner, so as to obtain a good uniform gasifyin g and so perheating of the oil for both of the burners; but if the front illuminating or heating burner O is to be stopped it is advantageous that the flame of the rear burner continue to burn, so that the vaporizer is not unnecessarily cooled. For this purpose the vaporizer is divided, so that the two burners B and C have separate vaporizing-chambers b and 0, respectively, each of which is provided with a separate petroleum-supply pipe at or a When the petroleum-supply of the pipe a for the illuminating or heating burner C is shutoff, the left half of the vaporizer and its appurtenances continue to work, so'that the heating-burner is fed with gas or vapor as formerly, and it heats the vaporizer so perfectly that when the petroleum-supply to the vaporizing-chamber c is reopened the illumihating-burner G enters at once in action. In this construction the vaporizer is provided at each end with a removable closure-head d or e, the rear head or end cl being conical, so that the flame issuing from the rear burner,which burner is in alinement with such head, is caused to spread over the surface of the vaporizer or retort.

The petroleum is supplied to the pipes a and a from a reservoir. (Not shown in the drawings.) The petroleum enters the vaporizing-chamber through fine perforations b c. For regulating the supply of liquid there are inserted into the upper part of the supply-pipes a (t any suitable regulating devices. (Not shown in the drawings.) The petroleum enters in a regulated, but sufficient, quantity] slowly into the vaporizingspaces. For putting the apparatus into action the vaporizer is first heated by a burning wad of cotton-waste or the like placed around the same. Petroleum-vapor passes through the pipe 17 to the heating-burner B and ignites in from t thereof, and the heatingflame thus produced spreads permanently over the vaporizing body, heating the latter to such a degree that the petroleum is transformed with certainty into superheated gas or vapor. This complete gasification or vaporization has also the result that deposits are not formed in the vaporizing-chambers. The pipe b is placed substantially parallel to the axis of theretort A, so that its contents are heated by the flame of therear burner. This construction of the apparatus is particularly suitable for heating purposes, and Figs. 3 and 4 represent a steam-boiler furnace provided with such vapor-burners. A marine boiler is shown heated by two apparatus arranged one beside the other in front of the fire-flue, and each apparatus is mounted on a wheeled carriage-frame f. To the front end of the apparatus is secured, as shown in Fig. 4, a cone g for connecting the apparatus with the boiler. At h close to the end of the-apparatus this cone is circumferentially perforated to such an extent that there Will be a sufficient supply of, air to the flame of the heating-burner. For controlling the air-supply a slotted valve iis provided. The longitudinal outer casing 7c of the apparatus may be lined,

if the heating apparatus is submitted to a hi gh temperature, with a layer of refractory material, such as fire-brick.

As will be evident, the constructions shown may be varied with regard to the materialand details without departing from the nature of the invention.

What I claim isl. A petroleum-vapor burner composed of a retort having a rear conical end and divided into a pair of chambers, separate inlet-pipes for said chambers, a front and a rear burner, the rear burner being placed in alinement with the rear conical end of the retort, and a Vapor-supply pipe adapted to feed the rear burner, all being so constructed that the flame of the rear burner is adapted to overspread the surface of the retort, substantially as 

